Bildiğim kadarıyla, o hâlâ bekâr.
- So far as I know, she is still unmarried.
O, bildiğim kadarıyla, güvenilir bir arkadaştır.
- He is, so far as I know, a reliable friend.
insofar as (or that), to the extent that, to such an extent.
... very chimneys unfold as far as the eye can see ...
... an opportunity for all lets us go as far as our dreams and toil will take us ...